Sanyo DP50741 Service Manual page 34

TROUBLESHOOTING FLOW CHARTS (CONT.)
NO AUDIO
All Modes ?
No
Yes
Is there
signal at IC001 ?
No
Monitor Out only
RF(TV), Digital(TV)
only
AV1 only
AV2 or AV3
or PC
HDMI 1 / 2 / 3
Is there
signal at speaker
terminal ?
Yes
No
Check:
Line: IC001 30,24pin(L), 21,15pin(R)
Yes
Parts: Around IC001 (Audio AMP.)
Check:
Line:
IC001 37pin - IC5500 H5pin (ACLK)
IC001 3pin - IC5500 H2pin (ADATA1)
IC001 4pin - IC5500 G3pin (LRCLK)
IC001 5pin - IC5500 H1pin (BCLK)
Parts: Around IC001 (Audio AMP.), IC5500
Check:
Line:
IC6250 7pin (L) - Monitor Out Terminal
IC6250 1pin (R) - Monitor Out Terminal
Parts: Q6250, Q6252
Check:
Line:
A6200 7pin - IC5500 L1pin (IF_OUTP)
A6200 6pin - IC5500 L2pin (IF_OUTN)
Parts: Around A6200(TU), IC5500
Check:
Line:
AV1 Terminal - IC5500 A2pin (L), A3pin (R)
Parts: Around IC5500
Check:
Line:
AV2 Terminal - IC1251 14pin (L), 5pin (R)
AV3 Terminal - IC1251 12pin (L), 1pin (R)
PC Terminal - IC1251 15pin (L), 2pin (R)
IC1251 13pin (L) - IC5500 B3pin (L)
IC1251 3pin (R) - IC5500 C4pin (R)
Parts: Around IC1251, IC5500
Check:
Line:
HDMI1 Terminal - IC6600 - IC5500
HDMI2 Terminal - IC6600 - IC5500
HDMI3 Terminal - IC6600 - IC5500
Parts: Around IC6600, IC5500
– 34 –
Check:
Speaker (SP901, SP902)